In a school having roll strength 286, the ratio of boys and girls is 8 : 5. If 22 more girls get admitted into the school, the ratio of boys and girls becomes
In a school, ratio of teacher and students is 4:17. If the total number of students is 3400, find the number of teachers in the school.
In a School, the ratio of the number of boys to girls is 6: 7. If there are 140 girls, the total number of students in the college is:
In a school, there are 100 students. 60% of the students are boys, 40% of whom play hockey and the girls dont play hockey, 75% of girls play badminton. There are only two games to be played. The number of student who dont play any game is:
In a set of three numbers, the average of first two numbers is 2, the average of the last two numbers is 3, and the average of the first and the last numbers is 4. What is the average of three numbers?
In a shower, 5 cm of rain falls. The volume of water that falls on 1.5 hectares of ground is:
In a statistical investigation of 1000 families of a city, it was found that 60 families had neither a radio nor a TV. 790 families had a radio and 210 families had a TV. How many families in the sample have both?
In a steam running at 2 km/h, a motorboat goes 10 km upstream and back again to the starting point in 55 min. Find the speed of the motorboat in still water
In a town of 500 people, 285 read Hindu and 212 read Indian Express and 127 read Times of India, 20 read Hindu and Times of India and 29 read Hindu and Indian Express and 35 read Times of India and Indian express . 50 read no news paper . Then how many read only one paper ?
In a two-digit number, the digit at the unit’s place is 1 less than twice the digit at the ten’s place. If the digits at unit’s and ten’s place are interchanged, the difference between the new and the original number is less than the original number by 20. The original number is
